Channel Width and Power Spectral Density

Channel Width and Power Spectral Density

The following section describes the relationship between Power Spectral Density (PSD) and Equivalent Isotropically Radiated Power (EIRP), and the channel width.
EIRP = PSD + 10 log (channel width)
For example, with a PSD of 5 dBm/MHz and a channel width of 20MHz, the EIRP is:
EIRP = 5 dBm/MHz = 10 log (20MHz) = 5 = 13 =18 dBm
320MHz channel width is not supported for Wi-Fi 6E devices and is added in the following diagrams for illustration purposes only. 320MHz channels will be added in Wi-Fi 7.